1. A tool comprising:
a housing surrounding a motor and a spindle that includes an aperture, wherein the motor is operatively connected to rotate the spindle;
a moving surface that is capable of receiving and supporting a working member; and
a lock including a body and a projection, the projection is inserted into the aperture in the spindle to connect the working member to the housing.
2. The tool of claim 1 wherein the lock further comprises an arm rotatably connected to the lock body and transferable between a first position where the arm extends from the lock body to provide a handle to allow for rotation of the lock body with respect to the spindle and a second position where the arm is contained within the lock body to prevent the lock body from rotation with respect to the spindle.
3. The tool of claim 1 further comprising an arm rotatably mounted to the lock body, wherein the arm can be rotated between a first position to rotate the lock with respect to the spindle and to a second position where the lock is rotatably fixed with respect to the spindle.
4. The tool of claim 1 wherein each of the aperture and the projection are correspondingly threaded.
5. The tool of claim 2 wherein the connection between the arm and the lock body is with a post that is rotatable about the lock body and the arm is rotatable about the post.
6. The tool of claim 5 wherein a first surface of the post is substantially perpendicular with a top surface of the lock body when the arm is in the first position and the first surface of the post is substantially parallel to the top surface of the lock body when the arm is in the second position.
7. The tool of claim 5 wherein the post is rotatably connected to the lock body with a first pinned connection and the arm is rotatably connected to the post with a second pinned connection.
8. The tool of claim 3 wherein the arm and the lock body each include a cavity to allow the user to rotate the arm from the second position to the first position.
9. The tool of claim 2 wherein the arm includes a recess that is engaged by a detent extending from the lock body when the arm is in the second position.
10. The tool of claim 1 wherein the tool is a rotary tool.
11. The tool of claim 10 wherein the rotary tool is a sander.
12. The tool of claim 10 wherein the rotary tool is a buffer.
13. The tool of claim 10 wherein the rotary tool is a grinder.
14. The tool of claim 3 wherein the connection between the arm and the lock body is with a post that is rotatable about the lock body and the arm is rotatable about the post.
15. A tool comprising:
a housing surrounding a motor and a spindle that includes an aperture, wherein the motor is operatively connected to rotate the spindle;
a moving surface that is capable of receiving and supporting a working member; and
a lock comprising a body and a projection, the projection is inserted in the aperture of the spindle to connect the working member to the housing, and an arm rotatably connected to the lock body with a post therebetween.
16. The tool of claim 15 wherein the arm is transferable between a first position away from the lock body to allow for rotation of the lock body with respect to the spindle, and a second position where the arm is within the outer dimensions of the lock body.
17. The tool of claim 16 wherein the lock body is rotatably fixed with respect to the spindle when the arm is in the second position.
18. The tool of claim 16 wherein the post is rotatably connected to the lock body with a first pinned connection, and the arm is rotatably connected to the post with a second pinned connection.
19. The tool of claim 16 wherein the arm further comprises a recess that is engaged by a detent extending from the lock body when the arm is in the second position.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An electrical connector assembly, comprising:
a printed circuit board having a circuit board and a soldering board extending forward from a front end of the circuit board, a plurality of soldering holes being opened on the soldering board; and
an electrical connector having:
an insulating housing having a base portion, an inserting portion protruding frontward from a front surface of the base portion, and a propping portion extending rearward from a bottom portion of a rear surface of the base portion;
a plurality of signal terminals assembled in the insulating housing, each signal terminal having a soldering tail projecting upward beyond a top surface of the propping portion for being inserted into the corresponding soldering hole of the soldering board and then soldered with the soldering board;
a main shell having a lower shell, a front shell where the inserting portion and the base portion are inserted forward, and a connecting plate connecting between the front shell and the lower shell for propping up the propping portion thereon, two opposite side edges of the connecting plate protruding upward to form two shielding plates respectively connecting with rear edges of two opposite sides of the front shell for clipping the propping portion and the soldering board therebetween to make the circuit board project in the lower shell, the lower shell having a base board and two side boards protruding upward from two opposite side edges of the base board; and
an upper shell matched with the lower shell to define a receiving room for receiving the circuit board therein, the upper shell having a base plate covered on the circuit board, and two lateral plates extending downward from two opposite lateral edges of the base plate for matching with the side boards of the lower shell, a front edge of each lateral plate extending toward the corresponding shielding plate to form a front plate obstructing in the front of the lower shell to seal up the receiving room, a front edge of the base plate extending frontward to form an auxiliary plate covered on the soldering board and cooperating with a top rear end of the front shell and tops of the shielding plates to enclose the soldering board thereamong.
2. The electrical connector assembly as claimed in claim 1, wherein two opposite side edges of the auxiliary plate extend downward to form a pair of clipping plates engaged with the corresponding shielding plates.
3. The electrical connector assembly as claimed in claim 2, wherein a portion of the top of each shielding plate is bent outward and then extends upward to form a clipping slice, a bottom of each clipping plate defines an assembling groove for engaging with the clipping slice of the shielding plate.
4. The electrical connector assembly as claimed in claim 1, wherein a portion of a top edge of each side board is bent inward and then extends upward to form a propping slice, a middle portion of a top edge of each propping slice protrudes upward to form a locating pillar, the circuit board defines two locating holes respectively adjacent to the corresponding side edges thereof for fastening the locating pillars therein.
5. The electrical connector assembly as claimed in claim 4, wherein the top edge of the propping slice abuts against a bottom surface of the circuit board of the printed circuit board to make the circuit board and the soldering board of the printed circuit board kept at a same horizontal level.
6. The electrical connector assembly as claimed in claim 1, wherein each side board defines a pair of fixing recesses spaced from each other along a front-to-rear direction of the electrical connector, each lateral plate defines two fixing grooves corresponding to the fixing recesses, a top edge and a bottom edge of each fixing groove extend toward each other to respectively form an upper flexible slice and a lower flexible slice further inclined inward, the lateral plates abut against outsides of the corresponding side boards, with the lower flexible slice buckled in the fixing recess and the upper flexible slice abutting against the top edge of the side board.
7. The electrical connector assembly as claimed in claim 6, wherein each side edge of the circuit board defines a pair of breaches spaced from each other, the upper flexible slice passes through the corresponding breach to resist against the top edge of the side board.
8. The electrical connector assembly as claimed in claim 1, wherein a top surface of the base portion protrudes upward to form two locating protrusions spaced from each other along a direction perpendicular to the front-to-rear direction of the electrical connector, the top rear end of the front shell defines two locating grooves, a front edge of the auxiliary plate defines two gaps facing the locating grooves respectively, each locating protrusion of the base portion is buckled in the corresponding locating groove of the front shell and the corresponding gap of the auxiliary plate.